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In a raw Itanium, a 'Processor Abstraction Layer' (PAL) is incorporated in system. When it's booted PAL is loaded in the CPU and provides a low-level interface which abstracts a number of instructions in addition provides a mechanism for processor updates distributed by a BIOS update.
At the time of BIOS initialization an additional layer of code 'System Abstraction Layer' (SAL) is loaded which provides a uniform API for implementation specific platform functions.
On top of PAL/SAL interface sits 'Extensible Firmware Interface' (EFI). EFI isn't part of IA-64 architecture however by convention it's needed on all IA-64 systems. It is a simple API for access to logical features of system (display, storage, keyboard etc) combined with a lightweight runtime environment (which is similar to DOS) which allows basic system administration tasks like configuring storage adapters, flashing BIOS and running an OS boot-loader.
Moment OS has been booted; some features of PAL/SAL/EFI stack stay resident in memory and can be accessed by OS to perform low-level tasks which are implementation-dependent on underlying hardware.
Class is a user-defined data type in C++. It can be formed to solve a particular kind of problem. After creation the user require not know the specifics of the working of a class.
For this project, we hope to use the basic idea of InfraRed (IR) communication for our television in ES103. In ES103, we have a Sony large-screen television that we hope to commun
A dialog box such as a File menu that have one command until it is clicked when a number of dissimilar commands "drop-down."
Question: (a) Write a proposal for a 10-11 minutes movie of your choice with the expected content. (b) Explain clearly the "Kuleshov Experiment" (c) Give the checklist be
With the help of a neat diagram, explain the working of a weighted-resistor D/A converter. Ans Weighted Register D/A Converter: Digital input that has 4 bits
What is Hashing? Hashing: Hashing gives the direct access of record from the file no matter where the record is in the file. This is possible with the help of a hashing functio
Q. What is Message Passing Libraries? In this part we will consider about message passing libraries. Traditionally a range of message passing libraries have been available ever
What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why. In a interface class, all methods are abstract without execution w
What are prefetch instructions? Prefetch instructions are those instructions which can be inserted into a program either by the programmer or by the compiler.
Compiler is used to change the high-level language program into machine code at a time. It doesn't needs special instruction to store in a memory, it keeps automatically. The imple
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